how does math.ceil work code example

Example 1: math.ceil

Math.ceil(.95);    // 1
Math.ceil(4);      // 4
Math.ceil(7.004);  // 8
Math.ceil(-0.95);  // -0
Math.ceil(-4);     // -4
Math.ceil(-7.004); // -7

Example 2: How does Math.ceil work

Math.ceil(x); //This equals the next whole number after x. X must be a double.

//Example use:
x = Math.ceil(x);
//Now x is equal to x rounded up.